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You searched for: creator:"Schopf, James Morton, 1911-"
[texts]Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships (Volume Report of Investigations No. 75) - Schopf, James Morton, 1911-
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education, Frank G. Thompson, director. Division of the State geological survey, M.M. Leighton, chief, Urbana
Keywords: Paleobotany; Mazocarpon; Paleobotany
Downloads: 44
[texts]Contributions to Pennsylvanian paleobotany: Notes on the Lepidocarpaceae (Volume Information circular / Illinois State Geological Survey ; [no. 73]) - Schopf, James Morton, 1911-
"Reprinted from the American Midland Naturalist, Vol. 25, no. 3, pp. 548-563, May, 1941."
Keywords: Lepidocarpaceae; Geology, Stratigraphic; Paleobotany
Downloads: 58
[texts]A new cycadophyte and its relatives (Volume Information circular / Illinois State Geological Survey ; [no. 50]) - Schopf, James Morton, 1911-
Cover title
Keywords: Cycads, Fossil; Plants, Fossil
Downloads: 56
[texts]The embryology of Larix (Volume 19, no. 4) - Schopf, James Morton, 1911-
"The present study ... was begun in 1932 ... and most of the material was presented in June, 1937, as a dissertation for the degree of doctor of philosophy in botany at the University of Illinois. An abstract of the dissertation was published ... in 1937. Some additional material was collected and sectioned in 1938, and a few recent bibliographical references have been added."--Pref
Keywords: Botany; Larch
Downloads: 227
[texts]Pteridosperm male fructifications; American species of Dolerotheca, with notes regarding certain allied forms (Volume Report of Investigations No. 142) - Schopf, James Morton, 1911-
"Reprinted from the Journal of paleontology, vol. 22, no. 6, November, 1948."
Keywords: Dolerotheca
Downloads: 31
[texts]Coal balls as an index to the constitution of coal (Volume Information circular / Illinois State Geological Survey ; [no. 51]) - Schopf, James Morton, 1911-
Cover title
Keywords: Coal balls; Coal
Downloads: 55
[texts]Two new lycopod seeds from the Illinois Pennsylvanian (Volume Information circular / Illinois State Geological Survey ; [no. 28]) - Schopf, James Morton, 1911-
Cover title
Downloads: 43
[texts]An annotated synopsis of paleozoic fossil spores : and the definition of generic groups (Volume Report of Investigations No. 91) - Schopf, James Morton, 1911-
References: p. 62-66
Keywords: Paleobotany; Plant spores, Fossil; Micropaleontology
Downloads: 58
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